SE_GENI_RX_FIFOn
val = readl_relaxed(base + SE_GENI_RX_FIFOn);
readl(se->base + SE_GENI_RX_FIFOn);
ioread32_rep(se->base + SE_GENI_RX_FIFOn, &fifo_word, 1);
readl(uport->membase + SE_GENI_RX_FIFOn);
ioread32_rep(uport->membase + SE_GENI_RX_FIFOn, buf, 1);